Characteristics of discharge generation across insulation barrier in the oil/Pressboard composite insulation system

Author

Yoshida, Sigeru ; Kozako, Masahiro ; Hikita, Masayuki ; Umemoto, Takahiro ; Kainaga, Soichiro ; Muto, Hirotaka ; Tsurimoto, Takao

Author_Institution

Kyushu Inst. of Technol., Kitakyushu, Japan

fYear

2014

fDate

1-5 June 2014

Firstpage

225

Lastpage

228

Abstract

This paper deals with the discharge characteristics in the oil/Pressboard composite insulation system under the application of a standard lightning impulse voltage. Discharge images were observed using a digital camera. We investigated the barrier effect on partial discharge inception voltage (PDIV) and breakdown voltage (BDV). Furthermore, we observed the discharge generation across the insulation barrier and also evaluated the voltage required for the phenomenon by the electric field analysis.

Keywords

composite materials; electric fields; partial discharges; power transformer insulation; transformer oil; BDV; PDIV; breakdown voltage; digital camera; discharge generation characteristics; electric field analysis; insulation barrier; oil insulation system; partial discharge inception voltage; pressboard composite insulation system; standard lightning impulse voltage; Dielectrics; Discharges (electric); Electrodes; ISO standards; Noise; Partial discharges; Creepage discharge; Oil-immersed transformer; Pressboard;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulating Materials (ISEIM), Proceedings of 2014 International Symposium on

Conference_Location

Niigata

Type

conf

DOI

10.1109/ISEIM.2014.6870759

Filename

6870759